Pipetester



(No Model.)

W. P. OBRIEN. PIPE TESTER, CLOSER, AND CLEAN-OUT.

Patented Mar. 31, 1891.

W Z71 amen Inven/%ar UNITED STATES ATENT MICE,

\VILLIAM PETER OBRIEN, ()F ST. PAUL, MINNESOTA.

PIPE TESTER, CLOSER, AND CLEAN-OUT.

SPECIFICATIONformin'g part of Letters Patent No. 449,169, dated March 31, 1891.

Application filed September 18, 1890. Serial No. 365,422. (No model.)

To all whom it 'IILCLZ/ concern:

Be it known that I, IVILLIAM PETER OBRIEN, of St. Paul, in the county of Ramsey and State of Minnesota, have invented certain new and useful Improvements in Pipe Testers, Closers, and Clean-Outs; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawlngs, forming a part of this specification, and

' to the letters of reference marked thereon.

This invention has for its object to provide a simple and eflicient device for closing the test and clean-out opening of a soil-pipe, which when applied will not only effectually close the opening against the escape of sewergas or other fluid, but at the same time, will permit the air-pu mp for testing or cleaning to be readily applied, and that without the necessity of opening the whole end of the pipe, the device being applied without the employment of load, oakum,or calking of any kind, thereby dispensing with the use of gasoline for heating the same and the danger incident thereto. B

The invention consists in a device having certain novel details of construction, combinations, and arrangements of parts to be hereinafter described, and pointed out particularly in the claims at the end of this specification. 4

Referring to the accompanying drawings, Figure 1 is a perspective view of the end of a pipe forming the test and clean-out opening of a soil-pipe having my invention applied thereto. Fig. 2 is a perspective view of the spider and central stem which serves to hold the cover in place. Fig. 3 is a sectional view of the end of the pipe and the closing device. Fig. :t is a top plan view with the cover removed. Fig. 5 is a bottom plan view of the cover.

Similar letters of reference in the several figures indicate the same parts.

In all residences having a system of sewage and soil pipes where it is desired to preserve proper sanitary condition it is necessary to provide test and clean-out openings, usually located at or near the traps, such openings being usually formed by a section of the soil-pipeitself set uprightin com munication with the said pipe and having its end closed by a plug or cover.

The end of the pipe forming the test and clean-out opening is shown in the drawings and indicated by the letter A, the flanged or socket end of the pipe being preferably turned up to receive the closing devices. Within the end of the pipe, and preferably resting on the seat formed by the base of the flange or socket, is a spider formed by the two crosspieces B B, the crosspiece B being turned up. at the end and tapped for the reception of setscrews D, which pass through said ends and engage the side walls of the pipe, holding the spider rigidly in position. In the preferred construction the ends of the set-screws are beveled or cup-shaped, as shown in Fig. 3, by which construction a very secure grip is obtained without danger of cracking orinjuring the pipe, no matter how tightly the screws are set up. The spider has a central upwardly-projecting stem or tubular projection E extending some distance above the end of the large pipe and screw-threaded down to a point about on a level with the top of said last-mentioned pipe. This central stem or tubular projection, which I shall herein term the test-pipe, is usually formed by a piece of ordinary three eighth-inch gas pipe and the spider is cast directly around its lower end A cover F, having two annular flanges f f, is provided for the end of the clean-out opening or larger pipe and has a central aperture F, through-which the testpipe passes. A rubber gasket or washer is fitted between the flanges f f, and when the cover is in position seats on the end of the large pipe. Thus when it is desired to close the pipe entirely itis only necessary to place a suitable washer G around the test-pipe above the cover and screw a nut H firmly down upon the same, forcing the cover down and leaving only the test-pipe opening'to the interior, which may in turn be closed by an ordinary cap I, screwed thereupon.

To apply the air-pump it is only necessary to remove the cap I from the test-pipe and screw on the pump connection in its place. Should an obstruction be found to exist, it is IOO only necessary to remove the nut H and cover F in order to obtain a full opening to the soilpipe.

The device, it will be seen, can be applied to the ends of any pipe which it is desired to close, and hence I do not wish to be limited to its application to test and clean-out openings.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a pipe-closer, the combination, with the spider having the set-screws for engaging the interior of the pipe, of the central stem, the cover fitting over the end of the pipe and having the central perforation, through which the stem passes, and the nut for holding the cover in place, substantially as described.

2. In a pipe-closer, the combination, with the spider having the set-screws for holding the same in place within the pipe and thecentral stem, of the cover for the pipe, having the central perforation forthe passage of the stem, the elastic gasket, and the nut on the stem for holding the cover in place, substantially as described.

In a pipe closer and tester, the combination, with the spider having the set-screws for holding the same in place within the pipe and the central tubular stem, of the cover having the central perforation, through which the stem passes, the not for holding the cover in place, and the cap for closing the central stem, substantially as described.

4. In a pipe closer and tester, the combination, with the spider formed by the crosspicces, one of which has its ends turned up and tapped for the reception of set-screws, setscrews passing through said ends and engaging the pipe, and the central tubular stem screw-threaded on the upper end, of the cover having the central perforation for the stem, the gasket beneath the cover, the nut on the stem for holding the cover, and the cap for closing the stem, substantially as described.

5. In a pipe closer and tester, the combination, with the pipe, of the spider having the set-screws with cup-shaped ends engaging the pipe. the central stem extending up from said spider and having its upper end screwthreaded, the cover having the gasket and central perforation, the nut screwing on the stem for holding the cover in place, and the cap fitting on the stem, substantially as described.

0. In a pipe closer and tester, the combination, with the flanged end of the pipe, of the spider formed by the cross-pieces resting on the seat formed by the flange, one of said cross-pieces having its ends turned up and tapped for the reception of set-screws, set

screws passing through said upturned ends, the upwardly-extending central tubular stein having its upper end screw-threaded, the cover having the flanges on the under side, the gasket fitting between said flanges, said cover also having a central perforation for the passage of the central stem, the nut on said stein for holding the cover in place, and the cap for closing the stem, substantially as described.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

WILLIAM PETER OBRIEN. Witnesses:

LoUIs FEESER, Jr., P. W. FARICY. 

